A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 6220-01-492-5018
NSN 5999-00-391-6202
NSN 7035-01-441-0942
NSN 5965-01-443-3407
NSN 5965-01-462-9340
NSN 5999-01-361-3782
NSN 6645-01-492-5304
NSN 5975-01-415-3331
NSN 5965-01-262-3513
NSN 5990-01-640-7795
NSN 6105-00-598-4910
NSN 5915-00-534-5391